Spatial dynamics of yeast community and its relationship with environmental factors in Lhalu Wetland, Tibet

Abstract:

[Objective] We studied the yeast diversity in Lhalu Wetland and analyzed the influence of environmental factors on yeast community. [Methods] Yeasts were isolated by in-situ cultivation and analyzed by the D1/D2 domain of large subunit (26S) ribosomal RNA and morphological characterization. [Results] In total 169 yeast isolates were identified to 15 genera and 31 species. Ustilentyloma graminis and Filobasidium magnumgenus were the dominating species in the wetland. Moreover, Naganishia, Ustilentyloma, Filobasidium and Cystofibasidium were the dominating genera. COD was significantly positive related to yeast abundance, and it had significant influence on Ustilentyloma. [Conclusion] Yeasts were abundant and diverse among various sites in Lhalu Wetland.